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. Author manuscript; available in PMC: 2015 Nov 1.
Published in final edited form as: Psychophysiology. 2014 Jul 1;51(11):1185–1194. doi: 10.1111/psyp.12260

Figure 3.

Figure 3

(A) The location of the time-averaged ssVEP over the visual cortex is demonstrated by the topography. (B) Time course of 15-Hz ssVEP amplitude in frequency domain obtained by complex demodulation averaged across 21 participants for a subset of posterior electrode locations and Oz. The reference point of the ssVEP data is the onset of each Gabor patch stream, depicted as ‘0 ms’. The envelope of ssVEP amplitudes follows different stimulus contrasts of the Gabor patch stream. The black dotted line is for habituation CS+, the gray dotted line is for habituation CS−, the black solid line is for acquisition CS+, the gray solid line is for acquisition CS−, the black dashed line is for extinction CS+, and the gray dashed line is for extinction CS−.